Improvement in alarm attachments for locks and bolts



Mv wmw" n N. PETERS. PNDWLITNOGRAPMER. WASHINGTON. D. C.

para cam.

'CHARLES E. PIERCE,-

OF NEW Y OBK, N. Y..

Letters Patent No. 104,195, lated June 14, 1870.

IMPROVEMENT IN ALARM ATTACHMENTS FOR LOCKS AND BOLTS.

The' vSchedule referredv to in these Letters Patent and making part ofthe same Kuow all men by these presents:

That I, CHARLES E. Plenos, of the city, county audSt-ate of New York,have invented certain new and useful Improvementsin Nose-Pieces with anAlarm Attachment, and to be used in connection with bolts for doors andwindows, also, to be used in connection with all'kinds of locks havingan extra bolt or lock attached, and as described below; the following isafull, clear, and exact description thereof, reference beingr had to theannexed drawing makin g a partl of the same, in which- Figure 1represents a'common bolt, with a lever attached tothe nose-piece.

Figure 2 represents a nose-piece with lever attached,

vand is designed' to be used in connection with a doorlock placed uponeither side ot' a door;

Figure 3 represents a nose-piece or plate with one ormore leversattached, and is designed to be used more particularly in connectionwith mort-ised locks.

Toall of said'figures, 1, 2, andv3, are attached au alarm-bell, which ismore minutely described below.

Figure 1P, on iig. 1, represents the under part of the nosepiece withlever 2" adjusted to it.

a' represents that part of the lever which cornes.

iu contact with the bolt when shoved into the nose piece.

`(l represents the plan lwhen the pin passes through the lever and intoeach side of the nose-piece.

b represents the end of lever to which is attached cords or wires D tostart the ala-rm.

` Figure-2 representsaside view of a nose-piece with lever attachment,and is used in the same manner as described above, and will be shown indescribing g. 3.V

Figures 3P 3f" 312 represent three levers which are fastened tostandards E F G, shown on fig. 4, also shown and connected to each otherongi. Saidlevers 3P 3l El"2 on tig. 3,'may be placed ou either end ofthe same it desired.

Figurep or lever 31 is fastened at or near its ceutcr H,betweenstandards Gr and E.

D, ou lever 3f', is a hole, through which passes end c c of lever 3l".

D on lever 3P represents a cord or wire, and

D D the hole in said lever 3 where thecord or wire is fastened.

Figure 31 Ior level' 3 is fastened to standard F, shown on g. 4.

Figure 3P or lever 3Z is fastened at l, between standards E E onflg. 4.

-b b ou figure 312 represents a hole, through which is inserted end c onlever 3N.

a a represents one end: of lever 3"2,`and is that part which the extraor inside bolt or lock, other than the ordinary lock rests against, whenshoved into the nose- `piece or plan, indented in said nose-piece tokeep the door more securely bolted or locked.

W'hen the different nose-pieces. above described, ar'elproperly fastenedto a door-jamb-or frame, and the different locks or bolts intendedforeach nosepicce are properly placed ou La -door to iit the nosepiecc,andthe door locked, and an alarm-bell is fastened to either of theabove-described levers, attached -to the different nose-pieces by meansof cord or wire D', should any. person from the outside succeed in un'locking the door, by means of afalse key or otherwise, and an attemptbe-inade to force the door open, the inside bolt yet remains locked oriu the nose-piece, and resting against `ends a aa ma on levers 2F; 3",and 3PZ, causes cord or wire Dto turn and sound an alarm, the said cordor wire D'. being connected at one end to the lever and the other tolthe alarm-bell; while, at the same time, `the door remains securelylocked or bolted.

The levers above described maybe attached to any nose-piece, and used inconnection with any kind of a bolt or lock of any size. l

I am aware that levers have been placed in the keeper before, and soarranged as to be released and lthe alarm operated by vwithdrawing thebolt. Also, that levers have been pivot-ed on the door-casing in Contactwith the end of theholt, so that, when au attempt is made to force thedoor'open without withdrawing the bolt, it will operate the lever andthrough it the alarm.

My improvement consists in so pivoting the lever in and to the keeper,nose-piece, or plate, that when an`V attempt is made to force open thedoor without withdrawing thev bolt, the end of thel latter will come incontact with the lever and operate the alarm, while the bolt is stillretained in the keeper.

Having thus described myimprovcd method for alarm attachments tonose-pieces, for dilerent locks or bolts, and the manner in which thesame may be used,

What I claim, therefore, is

The lever, when arranged inarecess on a keeper, nose-piece or plate, soas to'be operated by the end ot' -the bolt before the latter iswithdrawn, in the manner above described.

CHARLES PIERCE.

Witnesses:

Janes S. GRINNELL, H. N. WIGGur'r.

